They had deserted the work place and halted the trains by giving false critical command in the signalling system.

The Chennai Metro Rail Limited (CMRL) on Wednesday suspended three workers, two traffic controllers and one depot controller, for sabotage of Metro train services on April 29.

In a statement, the CMRL said it was found that three non-executive staff members — R. Manokaran and K. Prem Kumar, traffic controllers and Cynthia Roshan Samson, depot controller — were controlling the entire train movement of both Corridor 1 and 2 on April 29.

They had deserted the work place and halted the trains by giving false critical command in the signalling system to disturb/hamper the Metro train services intentionally. The CMRL had placed them under suspension for sabotage of the operational services. An enquiry will follow, the officials said.